package com.atguigu.juc;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

/**
 * 题目: 三个售票员    卖出      30张票
 * <p>
 * 1、 在高内聚低耦合的前提下，线程    操作(对外暴露的调用方法)    资源类
 */
public class SaleTicket {

    public static void main(String[] args) {

        Ticket ticket = new Ticket();

        new Thread(()->{for (int i = 0; i <= 40; i++) { ticket.saleTicket();}},"A").start();
        new Thread(()->{for (int i = 0; i <= 40; i++) { ticket.saleTicket();}},"B").start();
        new Thread(()->{for (int i = 0; i <= 40; i++) { ticket.saleTicket();}},"C").start();

        //        new Thread(new Runnable() {
//            @Override
//            public void run() {
//                for (int i = 0; i <= 40; i++) {
//                    ticket.saleTicket();
//                }
//            }
//        }, "C").start();
//
//        new Thread(new Runnable() {
//            @Override
//            public void run() {
//                for (int i = 0; i <= 40; i++) {
//                    ticket.saleTicket();
//                }
//            }
//        }, "A").start();
//
//        new Thread(new Runnable() {
//            @Override
//            public void run() {
//                for (int i = 0; i <= 40; i++) {
//                    ticket.saleTicket();
//                }
//            }
//        }, "B").start();

    }

}

class Ticket {   //资源类

    private int number = 30;
    private Lock lock = new ReentrantLock();

    public synchronized void saleTicket() {

        lock.lock();
        try {

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            lock.unlock();
        }

        if (number > 0) {
            System.out.println(Thread.currentThread().getName() + "\t 卖出第:" + (number--) + "\t还剩下" + number);
        }
    }


}